Patent · US Active

System for image enhancement

US8860744B2 · kind B2 · utility

3Cited by

6References

10Claims

0Family size

Assignee

Sharp Laboratories of America, Inc. · US

Inventors

Louis Joseph Kerofsky · Camas, US
Xinyu Xu · Shanghai, CN

Key dates

Filing date	Mar 30, 2012
Grant date	Oct 14, 2014
Priority date	—
Expiry date	Nov 27, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG09G2360/16
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A computer-implemented method for enhancing an input image that includes modifying the relatively lower frequency aspects of the input image based upon a brightening process, where the brightening process is based upon a brightening selection which is based upon a combination of an under brightening term and a clipping term and a joint saturation boost and brightening. The method modifies the relatively higher frequency aspects of the input image based upon reducing lower amplitude noise and enhancing the noise reduced higher frequency aspects of the input image, and combines the modified relatively lower frequency aspects of the input image and the modified relatively higher frequency aspects of the input image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.